cmake_minimum_required(VERSION 3.15)
project(XCEditor VERSION 1.0 LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

get_filename_component(XCENGINE_ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/.." ABSOLUTE)
set(XCENGINE_ENGINE_DIR "${XCENGINE_ROOT_DIR}/engine")
set(XCENGINE_ASSIMP_DLL "${XCENGINE_ENGINE_DIR}/third_party/assimp/bin/assimp-vc143-mt.dll")
set(XCENGINE_ASSIMP_LIB "${XCENGINE_ENGINE_DIR}/third_party/assimp/lib/assimp-vc143-mt.lib")

add_definitions(-DUNICODE -D_UNICODE)
add_definitions(-DIMGUI_ENABLE_DOCKING)

include(FetchContent)

set(XCENGINE_SHARED_IMGUI_SOURCE_DIR "${XCENGINE_ROOT_DIR}/build/_deps/imgui-src")
if(EXISTS "${XCENGINE_SHARED_IMGUI_SOURCE_DIR}/imgui.cpp")
    set(FETCHCONTENT_SOURCE_DIR_IMGUI "${XCENGINE_SHARED_IMGUI_SOURCE_DIR}")
endif()

FetchContent_Declare(
    imgui
    GIT_REPOSITORY https://gitee.com/mirrors/imgui.git
    GIT_TAG docking
    GIT_SHALLOW TRUE
)

FetchContent_MakeAvailable(imgui)

if(NOT TARGET XCEngine)
    option(XCENGINE_ENABLE_MONO_SCRIPTING "Build the Mono-based C# scripting runtime" ON)

    if(NOT DEFINED XCENGINE_MONO_ROOT_DIR OR XCENGINE_MONO_ROOT_DIR STREQUAL "")
        file(GLOB XCENGINE_MONO_ROOT_DIR_CANDIDATES "${XCENGINE_ROOT_DIR}/*/Fermion/Fermion/external/mono")
        if(XCENGINE_MONO_ROOT_DIR_CANDIDATES)
            list(GET XCENGINE_MONO_ROOT_DIR_CANDIDATES 0 XCENGINE_MONO_ROOT_DIR_DEFAULT)
        else()
            set(XCENGINE_MONO_ROOT_DIR_DEFAULT "${XCENGINE_ROOT_DIR}/managed/mono")
        endif()

        set(
            XCENGINE_MONO_ROOT_DIR
            "${XCENGINE_MONO_ROOT_DIR_DEFAULT}"
            CACHE PATH
            "Path to the bundled Mono distribution used by the scripting runtime")
    endif()

    add_subdirectory("${XCENGINE_ENGINE_DIR}" "${CMAKE_CURRENT_BINARY_DIR}/engine_dependency")
endif()

file(TO_CMAKE_PATH "${XCENGINE_ROOT_DIR}" XCENGINE_ROOT_DIR_CMAKE)
file(TO_CMAKE_PATH "${XCENGINE_MONO_ROOT_DIR}" XCENGINE_MONO_ROOT_DIR_CMAKE)

set(IMGUI_SOURCES
    ${imgui_SOURCE_DIR}/imgui.cpp
    ${imgui_SOURCE_DIR}/imgui_demo.cpp
    ${imgui_SOURCE_DIR}/imgui_draw.cpp
    ${imgui_SOURCE_DIR}/imgui_tables.cpp
    ${imgui_SOURCE_DIR}/imgui_widgets.cpp
    ${imgui_SOURCE_DIR}/backends/imgui_impl_win32.cpp
    ${imgui_SOURCE_DIR}/backends/imgui_impl_dx12.cpp
)

add_executable(${PROJECT_NAME} WIN32
    src/EditorApp.rc
    src/main.cpp
    src/Application.cpp
    src/Scripting/EditorScriptAssemblyBuilder.cpp
    src/Theme.cpp
    src/Core/UndoManager.cpp
    src/Core/PlaySessionController.cpp
    src/ComponentEditors/ComponentEditorRegistry.cpp
    src/Managers/SceneManager.cpp
    src/Managers/ProjectManager.cpp
    src/Core/EditorConsoleSink.cpp
    src/panels/Panel.cpp
    src/panels/MenuBar.cpp
    src/panels/HierarchyPanel.cpp
    src/panels/SceneViewPanel.cpp
    src/Viewport/SceneViewportPicker.cpp
    src/Viewport/SceneViewportMoveGizmo.cpp
    src/Viewport/SceneViewportRotateGizmo.cpp
    src/Viewport/SceneViewportScaleGizmo.cpp
    src/Viewport/SceneViewportHudOverlay.cpp
    src/Viewport/SceneViewportChrome.cpp
    src/Viewport/SceneViewportInteractionActions.cpp
    src/Viewport/SceneViewportInteractionResolver.cpp
    src/Viewport/SceneViewportTransformGizmoCoordinator.cpp
    src/Viewport/SceneViewportOrientationGizmo.cpp
    src/Viewport/SceneViewportOverlayBuilder.cpp
    src/Viewport/SceneViewportOverlayFrameCache.cpp
    src/Viewport/SceneViewportRenderPassBundle.cpp
    src/Viewport/SceneViewportOverlaySpriteResources.cpp
    src/Viewport/SceneViewportOverlayProviders.cpp
    src/Viewport/Passes/SceneViewportEditorOverlayPass.cpp
    src/Viewport/Passes/SceneViewportGridPass.cpp
    src/Viewport/Passes/SceneViewportSelectionOutlinePass.cpp
    src/panels/GameViewPanel.cpp
    src/panels/InspectorPanel.cpp
    src/panels/ConsolePanel.cpp
    src/panels/ProjectPanel.cpp
    src/panels/XCUIDemoPanel.cpp
    src/UI/BuiltInIcons.cpp
    src/Layers/EditorLayer.cpp
    ${IMGUI_SOURCES}
)

target_include_directories(${PROJECT_NAME} PRIVATE 
    ${CMAKE_CURRENT_SOURCE_DIR}/src
    ${CMAKE_CURRENT_SOURCE_DIR}/src/Viewport
    ${imgui_SOURCE_DIR}
    ${imgui_SOURCE_DIR}/backends
)

target_compile_definitions(${PROJECT_NAME} PRIVATE
    UNICODE
    _UNICODE
    XCENGINE_EDITOR_REPO_ROOT="${XCENGINE_ROOT_DIR_CMAKE}")
target_compile_options(${PROJECT_NAME} PRIVATE /utf-8)

if(XCENGINE_ENABLE_MONO_SCRIPTING)
    target_compile_definitions(${PROJECT_NAME} PRIVATE
        XCENGINE_ENABLE_MONO_SCRIPTING
        XCENGINE_EDITOR_REPO_ROOT="${XCENGINE_ROOT_DIR_CMAKE}"
        XCENGINE_EDITOR_MONO_ROOT_DIR="${XCENGINE_MONO_ROOT_DIR_CMAKE}")
endif()

if(MSVC)
    target_compile_options(${PROJECT_NAME} PRIVATE /FS)
    set_property(TARGET ${PROJECT_NAME} PROPERTY
        MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>DLL")
endif()

target_link_libraries(${PROJECT_NAME} PRIVATE
    XCEngine
    d3d12.lib
    Dbghelp.lib
    dxgi.lib
    d3dcompiler.lib
    Ole32.lib
    Shell32.lib
    Uuid.lib
)

set_target_properties(${PROJECT_NAME} PROPERTIES
    OUTPUT_NAME "XCEngine"
    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/bin"
)

add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
    COMMAND ${CMAKE_COMMAND} -E copy_if_different
        ${XCENGINE_ASSIMP_DLL}
        $<TARGET_FILE_DIR:${PROJECT_NAME}>/assimp-vc143-mt.dll
)